Cryo-EM structures of human hepatitis B and woodchuck hepatitis virus small spherical subviral particles.
Cryo-EM structures of human hepatitis B and woodchuck hepatitis virus small spherical subviral particles.
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人乙肝病毒和土拨鼠肝炎病毒小球形亚病毒颗粒的冷冻-EM结构。
DOI:
10.1126/sciadv.abo4184
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发表时间:
2022-08-05
期刊:
影响因子:
13.6
通讯作者:
中科院分区:
文献类型:
--
作者:
The loss of detectable hepatitis B surface antigen (HBsAg) is considered a functional cure in chronic hepatitis B. Naturally, HBsAg can be incorporated into the virion envelope or assembled into subviral particles (SVPs) with lipid from host cells. Until now, there has been no detailed structure of HBsAg, and the published SVP structures are controversial. Here, we report the first subnanometer-resolution structures of spherical SVP from hepatitis B virus (HBV) and the related woodchuck hepatitis virus (WHV) determined by cryo–electron microscopy in combination with AlphaFold2 prediction. Both structures showed unique rhombicuboctahedral symmetry with 24 protruding spikes comprising dimer of small HBsAg with four helical domains. The lipid moiety in the SVP is organized in a noncanonical lipid patch instead of a lipid bilayer, which can accommodate the exposed hydrophobic surface and modulate particle stability. Together, these findings advance our knowledge of viral membrane organization and the structures of HBV and WHV spherical SVPs. High-resolution structures of hepadnavirus spherical subviral particles show unique lipid and protein organization.
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影响因子:
9.2
作者:
Nguyen B;Tolia NH
通讯作者:
Tolia NH
DOI:
10.3390/v9030056
发表时间:
2017-03-21
期刊:
Viruses
影响因子:
--
作者:
Hu J;Liu K
通讯作者:
Liu K
影响因子:
64.8
作者:
Jumper J;Evans R;Pritzel A;Green T;Figurnov M;Ronneberger O;Tunyasuvunakool K;Bates R;Žídek A;Potapenko A;Bridgland A;Meyer C;Kohl SAA;Ballard AJ;Cowie A;Romera-Paredes B;Nikolov S;Jain R;Adler J;Back T;Petersen S;Reiman D;Clancy E;Zielinski M;Steinegger M;Pacholska M;Berghammer T;Bodenstein S;Silver D;Vinyals O;Senior AW;Kavukcuoglu K;Kohli P;Hassabis D
通讯作者:
Hassabis D
影响因子:
4.8
作者:
Gerlich WH
通讯作者:
Gerlich WH
影响因子:
16.6
作者:
Hardy JM;Newton ND;Modhiran N;Scott CAP;Venugopal H;Vet LJ;Young PR;Hall RA;Hobson-Peters J;Coulibaly F;Watterson D
通讯作者:
Watterson D